Diamond frogs forever: a new species of Rhombophryne Boettger, 1880 (Microhylidae, Cophylinae) from Montagne d’Ambre National Park, northern Madagascar
Diamond frogs forever: a new species of Rhombophryne Boettger, 1880 (Microhylidae, Cophylinae) from Montagne d’Ambre National Park, northern Madagascar
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DOI：
10.3897/zse.96.51372
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发表时间：
2020-06
影响因子：
2
通讯作者：
M. Scherz
中科院分区：
文献类型：
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作者：
M. Scherz
虽然马达加斯加青蛙的分类学进展目前正在以前所未有的速度进行，但完成这个高度多样化岛屿的两栖动物清单的目标仍然很遥远。部分原因是更多的新物种继续以高速度被发现，在某些情况下，在研究充分的地区。在这里，我描述Rhombophryne nov.，2017年在马达加斯加北方的Montagne d'Ambre国家公园发现了一种新的钻石蛙。这个新物种在后肢上有橙子闪光标记（与任何已描述的Rhombophryne物种都不相同）和大的黑色腹股沟斑点（比所有其他已描述的Rhombophryne物种都大）方面非常独特。它与所有已命名的Rhombophryne种在16 S rRNA线粒体条形码标记中的大量未校正的成对距离（> 7%）分离，并且与来自马达加斯加北方的Tsaratanana的未描述的候选种最接近。Rhombophryne sp. nov.在不断增长的具有红色至橙子闪光标记的cophyline microhylids名单中增加了另一个分类群，其功能仍然未知，并且显然在这种辐射中反复进化。在一个研究比较充分的公园内发现这样一个独特的物种，表明半洞穴蛙类的可探测性很低，而恶劣天气在提高可探测性方面发挥了作用。
Although taxonomic progress on the frogs of Madagascar is currently proceeding at an unprecedented pace, the goal of completing the amphibian inventory of this hyper-diverse island is still far off. In part this is because more new species continue to be discovered at a high rate, in some cases within well-studied areas. Here, I describe Rhombophryne ellae sp. nov., a new species of diamond frog discovered in Montagne d’Ambre National Park in northern Madagascar in 2017. This new species is highly distinctive in having orange flash-markings on its hindlimbs (not known from any described species of Rhombophryne), and large, black inguinal spots (larger than in all other described Rhombophryne species). It is separated from all named species of Rhombophryne by a substantial uncorrected pairwise distance in the 16S rRNA mitochondrial barcode marker (> 7%) and is most closely related to an undescribed candidate species from Tsaratanana in northern Madagascar. Rhombophryne ellae sp. nov. adds another taxon to the growing list of cophyline microhylids that have red to orange flash-markings, the function of which remains unknown and which has clearly evolved repeatedly in this radiation. The discovery of such a distinctive species within a comparatively well-studied park points toward the low detectability of semi-fossorial frogs and the role of inclement weather in increasing that detectability.